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Brachial artery

The brachial artery is a major blood vessel located in the upper arm and is
the main supplier of blood to the arm and hand. The brachial artery continues from the axillary
artery at the shoulder and travels down the underside of the arm. Along with
the medial cubital vein and bicep tendon, it forms the cubital fossa, the
triangular pit on the inside of the elbow.

Below the cubital fossa, the brachial artery divides into two arteries
running down the forearm: the ulnar and radial. In some people, this division occurs
higher up, causing these arteries to run through the upper arm. These are the
two main branches of the brachial artery. The brachial artery’s other branches
are: the inferior ulnar collateral, profunda brachii, and superior ulnar
arteries.

The brachial artery's pulse can be felt on the elbow's
front side. This is why blood pressure is measured in this area using either a
sphygmomanometer (a blood pressure meter) or a stethoscope.